fix(vertico): `+vertico/embark-preview` bug
fix(vertico): `+vertico/embark-preview` bug

- replace obsolete `embark-default-action` with `embark-dwim`
- add `defvar` for `embark-quiet-after-action` to fix lexical var bug

hlissner/doom-emacs,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/doom-emacs